Ep. 4: G-Soldiers confront a Zeravire draining energy at an ocean thermal power plant.
The Earth Federation Alliance thermal power plant receives a warning about a Zeravire in the ocean, but G-Soldiers remain unaware. Leele searches for the creature in the G-Shadow but loses contact with Sandman and Raven after a sighting. While maintenance prepares the G-Driller for Luna and Eina, and the Gran Kaiser for Toga, Eiji and Mizuki are grounded due to non-operational mecha. Eiji disguises himself as Eina to join Toga and Luna in locating Leele. Upon finding her, the Zeravire attacks. Toga prioritizes Leele's safety over sacrifice. At the plant, Sandman notes the Zeravire is draining energy to evolve and will challenge Gravion. Toga fights the creature alone until Eiji, Luna, Mizuki, and Thoria arrive. The Gran Divas combine into Gravion, but Toga cannot endure Elgo Mode due to oxygen lack. Leele assists from the cockpit, enabling the Super Heavyweight Slash technique to defeat the Zeravire. Toga recovers in bed-rest while his crew encourages him.
Episodes
- Ep. 1 · The Earth Federation Alliance battles Zeravire while Eiji and Luna recall Toga's past.
- Ep. 2 · Eiji and friends visit Sandman's castle, leading to a chaotic picnic and a runaway G-Driller incident.
- Ep. 3 · Sandman organizes a hot springs trip while Zeravire activity threatens the resort
- Ep. 4 · G-Soldiers confront a Zeravire draining energy at an ocean thermal power plant.
- Ep. 5 · Gran Knights investigate an island amusement park for Zeravire signs while Leele faces her true nature.
- Ep. 6 · Mizuki's Spy Revelation and Leele's Tragic Fall into the Water
- Ep. 7 · Toga Combines with Gravion While Eina Sacrifices Herself to Save Him
- Ep. 8 · Eiji searches for Toga while the Gran Troopers prepare for the Zeravire threat